CVE-2023-24040Public exploit

Heap memory disclosure via unterminated printer-name buffer

Published Jan 21, 2023 · Updated Aug 2, 2024

Heap memory disclosure in Common Desktop Environment 1.6 allows local users to expose dtprintinfo process memory on Solaris 10. DtConfigPrinters::readContinuedLine() fails to NUL-terminate heap buffers for lines longer than 256 bytes, and UpdateMainPrtList() passes them to fprintf(). A low-privileged local user must place a long crafted printer name in $HOME/.printers and interact with the X11 GUI; the resulting out-of-bounds read writes adjacent heap bytes back into that file.

CVSS severity7.1
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Heap memory disclosure in Common Desktop Environment 1.6 allows local users to expose dtprintinfo process memory on Solaris 10. DtConfigPrinters::readContinuedLine() fails to NUL-terminate heap buffers for lines longer than 256 bytes, and UpdateMainPrtList() passes them to fprintf(). A low-privileged local user must place a long crafted printer name in $HOME/.printers and interact with the X11 GUI; the resulting out-of-bounds read writes adjacent heap bytes back into that file.

The record

CVE
CVE-2023-24040
Published
Jan 21, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo